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Star-knowledge

Microsoft Solutions Partner for Modern Work + Infrastructure

Microsoft 365 Migration Services

Migrate email, files, applications, and collaboration to Microsoft 365 with a structured, low-disruption approach.

Migrating organisations to Microsoft 365 from every major source platform for over 15 years.

Microsoft 365 migration specialists

Source-platform migration experience

mail, documents, applications and collaboration, Assessment-led delivery

Built across the major agent ecosystems

Copilot Studio

Azure AI Foundry

AWS Bedrock

Google Vertex AI

OpenAI

LangChain / LangGraph

Consultant using an AI knowledge assistant

Move Beyond Legacy Platforms

01

Stuck on an ageing platform with end-of-support pressure?

02

Multiple systems to migrate — email, documents, apps, collaboration — and no single plan?

03

Users want Teams, Copilot, and modern M365 but you’re stuck on legacy?

04

Not sure which migration type you need or where to start?

What We Do

One Migration Partner Across Every Platform

01

Every source platform

We migrate from Exchange, SharePoint, Notes, Google Workspace, GoDaddy, Slack, Laserfiche, DocStar, other M365 tenants, and on-prem applications.

02

Specialist pages, not generic

Every migration type has its own specialist page with deep methodology and a tailored estimator — not one-size-fits-all.

03

Validated Data Fidelity

Email history, attachments, calendar items, metadata, permissions, and folder structures are mapped, migrated, and validated before cutover. Source-platform limitations are documented during discovery.
04

Minimal disruption

We migrate in waves with coexistence and rollback plans so users keep working during the transition.

05

Complete — not just email

We migrate email AND documents, SharePoint sites, custom applications, workflows, and collaboration — the full exit from the old platform.

06

Copilot-ready destination

Content moved into Microsoft 365 can become easier to discover through Microsoft Search, Teams, and Copilot experiences when permissions, governance, and information architecture are configured correctly.

Our Services & Capabilities

Find Your Source Platform

01

Exchange On-Premises → Microsoft 365

Migrate mailboxes, calendars, public folders, and transport rules from Exchange Server to Exchange Online.

02

SharePoint On-Premises → SharePoint Online

Migrate sites, documents, metadata, permissions, and modernise farm solutions, workflows, and InfoPath.

03

Lotus Notes / Domino → Microsoft 365

Migrate email, custom Notes applications (NSF), and documents — the complete Notes exit.

04

Google Workspace → Microsoft 365

Migrate Gmail, Google Drive, Calendar, and Sites to Exchange Online, OneDrive, and SharePoint.

05

GoDaddy → Microsoft 365

Migrate from GoDaddy’s delegated M365 tenant to a direct Microsoft tenant you control.

06

Slack → Microsoft Teams

Migrate channels, message history, files, and integrations from Slack to Teams.

07

Laserfiche → SharePoint Online

Migrate documents with metadata, workflows, and records management from Laserfiche to SharePoint.

08

DocStar → SharePoint Online

Migrate documents, metadata, AP workflows, and compliance from DocStar to SharePoint + Power Automate.

09

Tenant-to-Tenant (M365 → M365)

Migrate users, data, and configuration between M365 tenants — M&A, rebranding, or divestiture.

10

Application Migration (On-Prem → Azure)

Migrate Windows VMs, SQL databases, .NET apps, and LOB workloads to Azure.

11

Hybrid & Multi-Cloud

Architect and govern hybrid (on-prem + cloud) and multi-cloud (Azure + AWS + GCP) environments.

"What Are You Migrating?" → Where to Go

Exchange Server (on-prem) Email, calendar, public folders Our specialist page

Exchange Server (on-prem)

Email, calendar, public folders

SharePoint Server (on-prem)

Sites, docs, metadata, workflows

Lotus Notes / Domino

Email, apps (NSF), documents

Google Workspace

Gmail, Drive, Calendar

GoDaddy hosted M365

Users, data, tenant control

Slack

Channels, messages, files

Laserfiche

Documents, metadata, workflows

DocStar

Documents, metadata, AP workflows

Another M365 tenant

Users, mailboxes, SharePoint, Teams

On-prem servers & applications

VMs, databases, LOB apps

Multiple clouds / hybrid

Workloads across clouds + on-prem

Not sure / multiple sources

Everything

The migration type finder above routes you to the right specialist page; each has its own estimator.

Technology Stack and Technical Controls

Migrations are scoped around identity, licensing, DNS, security, data mapping, coexistence, validation and cutover readiness. Depending on the source, the delivery plan may include Exchange Online, SharePoint Online, OneDrive, Teams, Entra ID, Azure, Power Platform, migration tooling, retention policies, permission mapping, audit checks and post-migration monitoring.

1

Free consultation & scoping

We discuss what you’re migrating, from where, and your timeline — and recommend the right migration type and approach. No cost, no obligation.

2

Discovery & assessment

We assess the source environment, target Microsoft 365 tenant, users, data volumes, permissions, retention needs, customisations, integrations and dependencies, then build a migration plan with risk controls and validation checkpoints.

3

Pre-migration preparation

We prepare both environments: M365 tenant configuration, identity setup, networking, and coexistence if needed.

4

Pilot migration

We migrate a pilot group to validate the approach, confirm fidelity, and catch issues before scaling.

5

Wave migration

We migrate in planned waves — by department, site, or priority — with validation after each wave.

6

Post-migration optimisation

We validate completeness, configure M365 features (Teams, SharePoint modern, Copilot readiness), and train users.

7

Source platform decommission

Once everything is migrated and validated, we decommission the source platform — a clean, documented exit.

It starts with a free migration consultation. No obligation.

Why Star Knowledge for Migration

Criteria Star Knowledge Single-Platform Migrator In-House IT
Source platforms

Source-platform migration coverage, Microsoft 365 implementation depth, coexistence planning, validation and post-migration optimisation

One source only

What they know

Migration depth

Email + docs + apps + collaboration

Email only usually

Piecemeal

Fidelity

Full — metadata, permissions, history

Variable

Risky

Customisation handling

Modernised (SPFx, Power Automate, Power Apps)

Ignored

Blocking risk

Coexistence

Standard practice

Variable

Ad-hoc

Post-migration

M365 optimisation, training, Copilot readiness

Hand-off

Neglected

Track record

100+ migrations, 15+ years

Narrow

First-time

Case Studies

Exchange Hybrid Migration to office 365

Prominent HVAC manufacturer, headquartered in Germany, operating globally

Coordinating a unified tenant across five countries and multiple time zones

A phased, hybrid migration into one GDPR-compliant Office 365 tenant

Exchange to Office 365 Migration - featured

Investment advisory firm in Financial Services, headquartered in San Francisco, CA, with offices in New York, Fort Lauderdale, Chicago, and London

Spam control, tenant migration, and support across multiple geographies

A full Exchange-to-cloud migration with DR, security, and spam protection built in

Exchange 2013 to Microsoft 365 Migration
Multinational organization

Consolidating multiple regional Exchange environments without disrupting global operations

A phased, carefully batched migration that preserved mail flow and calendar integrity

Industries We Serve

Manufacturing

Multi-platform exits and complex application migrations

Financial Services

Compliant, high-fidelity email and document migration

Professional Services

M&A-driven migrations and platform consolidation

Healthcare

HIPAA-aligned migration with archive preservation

Government

Records-compliant migration with retention continuity

Retail

HQ, store, and e-commerce platform migration

Education

Staff, faculty, and student platform migration

Legal

High-volume mailbox and document migration with eDiscovery continuity

From a 50-user email migration to a 5,000+ user multi-stream platform exit, we scale to fit.

Insights

Blog

Common Challenges and Solution for Managed Microsoft 365 Migration

Blog

Microsoft 365 Migration Checklist: A Step-by-Step Guide to Minimize Risks & Maximize Efficiency

checklist

365 migration readiness checklist

guide

Planning your Microsoft 365 migration programme

The Migration Wave Is Accelerating (2026)

Migration pressure is increasing because many organisations are balancing end-of-support risk, legacy platform cost, Microsoft 365 adoption and AI-readiness. For most teams, the practical question is not whether to migrate, but how to sequence identity, email, files, applications and collaboration without disrupting users.

01

End-of-support deadlines — Exchange 2013, 2016, SharePoint 2013, Notes/Domino — all pushing migration timelines

02

Copilot requires M365 — content on legacy platforms is invisible to AI; migration unlocks it

03

Double licensing is indefensible — paying for M365 AND the old platform is a cost most CFOs won’t sustain
04
Each migration type has its own complexity — email is fast, documents need metadata, apps need modernisation, collaboration needs adoption

Where should we start if we have multiple things to migrate?

Start with a consultation that scopes everything together. We’ll assess what needs to move, in what order, and build a coordinated programme — not three separate projects that trip over each other. The typical sequence: identity and DNS first, email second (highest user impact), documents and SharePoint third, applications fourth, and collaboration (Teams adoption) throughout.

Frequently Asked Questions

We migrate to Microsoft 365 from: Exchange Server (on-prem), SharePoint Server (on-prem), Lotus Notes/Domino, Google Workspace, GoDaddy, Slack, Laserfiche, DocStar, other M365 tenants, on-prem applications (to Azure), and hybrid/multi-cloud environments. Each has a specialist page with its own methodology and estimator.

The migration type finder above identifies it based on what you’re migrating and where from. If you’re migrating from multiple sources simultaneously (e.g., Exchange + SharePoint + Notes), start with a consultation so we scope them as a coordinated programme.

Yes — multi-stream migration programmes are common. We coordinate email, documents, applications, and collaboration streams with shared identity, DNS, and licensing management. The key is sequencing them correctly so they don’t conflict.

We plan migrations to reduce data-loss risk and validate migrated content before cutover. During discovery, we confirm what can be migrated, what needs remediation and where source-platform limitations may affect fidelity.

It varies by type and volume. A 50-user email migration runs 1–2 weeks. A 500-user Exchange + SharePoint migration runs 6–12 weeks. A multi-stream enterprise programme (email + docs + apps) runs 4–8 months. Each specialist page has timing detail for its migration type.

It depends on migration type, volume, complexity and timeline. For calculator estimates, use $400–$600 per day. Simple email migrations may start around $5,000–$15,000, while multi-stream enterprise programmes can run $50,000–$200,000+. A consultation scopes the estimate more precisely.

Yes. Migration is step one; adoption is what delivers value. We help configure M365 features (Teams, SharePoint modern, Copilot readiness), train users, and support the transition from legacy habits to M365 workflows.

Yes — clean decommission is part of every migration. We validate that everything has migrated successfully, then plan and execute the shutdown of the source platform: servers, licences, and infrastructure.

Book My Free Migration Consultation

Tell us the task you have in mind. We’ll assess whether an agent suits it, at what autonomy level, and what the first step should be.

Typically responds within 8 business hours · Confidential